CN109058680B - Orthogonal scale foot rest - Google Patents

Abstract

The invention discloses an orthogonal ruler tripod with a simple structure and easy operation. It is evenly distributed on the opposite surface of the open annular base and the opening, and is rotationally connected to the open annular base and the axis is orthogonal to the horizontal plane. There are two transverse screws on the transverse screws. There is a guide rail with the axis coplanar and parallel to the transverse screws. The guide rail is connected with a slide block that is threadedly connected to the transverse screws. There is a sliding locking device on the slide block. There is a connecting piece with an axis and a transverse screw perpendicular to the horizontal plane. The legs are connected to the connecting piece by radial rotation. There is a telescopic device on the legs. A transverse pedal is set on the bottom of the legs. There is also a fixed on the open annular base. Two tube levels parallel and orthogonal to the transverse screw axis.

Description

Orthogonal ruler tripod

Technical field

The invention relates to a measurement auxiliary device, in particular to an orthogonal ruler tripod with a simple structure and easy operation.

Background technique

During geodetic surveying and engineering surveying, it is necessary to keep the measuring ruler (leveling measuring ruler, total station reflecting prism centering rod, satellite positioning measurement centering rod, etc.) upright on the measurement mark point, keeping it vertical and facing the level and other measuring devices. Measurement can only be carried out, that is, the vertical state of the measuring ruler and the deflection angle facing the level directly affect the measurement accuracy. The outer base of the previous measuring tripod (tripod) is flat and cannot be used for measuring rulers, so it requires the measurement personnel to operate by hand. That is, the measurement personnel adjust the measurement ruler by observing whether the bubble of the level is centered, and by holding it manually Keeping the measurement ruler in a vertical state is not only time-consuming and labor-intensive, but also difficult to ensure accurate leveling, thereby reducing the accuracy of measurement. In order to solve the above problems, the Chinese Utility Model Patent No. 201220373858.9 discloses a "clip-on measuring tripod". Its main contribution is to change the outer base of the traditional tripod from a flat plate (head-type structure) to Ring-shaped (clip-on structure), for the first time a dedicated measuring tripod is provided for the measuring ruler, which improves the accuracy of the upright and vertical measuring ruler. The Chinese invention patent with patent number 201310022381.9 discloses a "clip-type measuring tripod", which further uses the orthogonal decomposition adjustment principle to improve the "clip-type measuring tripod" and speed up the adjustment speed of the ruler in the upright state. . The specific operation process is to first place the measuring ruler in the base, fix the measuring ruler to the base through a fixed connection device, place the bottom of the measuring ruler on the measurement mark point, roughly facing the level, and then adjust the radial angle and length, the measuring ruler can be set up stably and roughly vertically, and then the measuring ruler can be accurately positioned vertically by fine-tuning the top screw. The Chinese invention patent with patent number 201610159164.8 discloses a "measuring tripod that can accurately adjust the angle of the ruler", which further solves the problem of horizontal rotation and aiming after the ruler is straightened. However, the above-mentioned measurement tripod still has the following shortcomings in practical applications: (1) The currently used orthogonal tripod has its legs located in the longitudinal and transverse directions of the rectangular ruler. When used, the surveyor will stand eccentrically and operate sideways, which will cause the surveyor to stand eccentrically and operate sideways. It is conducive to long-term measurement work; (2) The ruler level is fixed to the ruler but not to the tripod. When the ruler is adjusted to the upright state after the ruler is rotated, the bubble direction of the L-shaped level will be inconsistent with the tripod (or leg) adjustment screw. The directions are inconsistent, which affects the rapid straightening of the ruler.

Contents of the invention

The present invention is to solve the above technical problems existing in the prior art and provide an orthogonal ruler tripod with a simple structure and easy operation.

The technical solution of the present invention is: an orthogonal scale tripod with an open ring base. A rectangular open ruler seat is rotatably connected to the inside of the open ring base through a vertical axis. Between the open ring base and There are springs between the rectangular open ruler seats, and a transverse jackscrew is provided on the open annular base. The front end of the transverse jackscrew offsets the front end of the right side of the rectangular open ruler seat. Between the open annular base and Two transverse screws that are rotationally connected to the open annular base and whose axes are orthogonal to the horizontal plane are evenly distributed on the opposite surfaces of the opening. A guide rail is provided on the transverse screws with an axis coplanar and parallel to the transverse screws. On the guide rail The sleeve is connected with a slide block that is threadedly connected to the transverse screws. There is a sliding locking device on the slide block. The slide block is provided with a connector whose axis is vertical to the transverse screw on the horizontal plane. The legs and the connector are connected in radial rotation. On the legs There is a telescopic device on the base, a transverse pedal is provided on the bottom of the foot, and two pipe levels parallel and orthogonal to the transverse screw axis are fixed on the open annular base.

The invention has a simple structure. The adjusting screws and legs of the tripod are evenly distributed on the opposite surface of the opening of the open annular base and are distributed in an orthogonal manner. This not only ensures the rapid straightening of the ruler, but also effectively avoids the surveyor from standing eccentrically. The problem of sideways operation is easy to operate; at the same time, the level is directly fixed to the tripod, which avoids the problem that the bubble direction of the L-shaped level is inconsistent with the direction of the tripod (or leg) adjustment screw, making the surveyor's operation easier. Improved the work efficiency of level measurement.

Description of drawings

Figures 1, 2, and 3 are schematic structural diagrams of embodiments of the present invention.

Detailed ways

Example:

As shown in Figures 1, 2, and 3: the same as the prior art, there is an open ring base 1, and a rectangular open ruler seat 6 is rotatably connected to the inside of the open ring base 1 through a vertical axis 8. There is a spring 10 between the base 1 and the rectangular open ruler seat 6. A transverse jackscrew 9 is provided on the open annular base 1. The front end of the transverse jackwire 9 offsets the front end of the right side of the rectangular open ruler seat 6 and is in contact with the right front end of the rectangular open ruler seat 6. What is different from the prior art is that on the opposite surface of the open annular base 1 and the opening, there are evenly distributed two transverse screws 2 that are rotationally connected to the open annular base 1 and whose axes are orthogonal to the horizontal plane. The transverse screw 2 is provided with a guide rail 3 whose axis is coplanar and parallel to the transverse screw 2. The guide rail 3 is sleeved with a slide block 4 that is threadedly connected to the transverse screw 2. The slide block 4 is provided with a sliding locking device 4-1. The slider 4 is provided with a connecting piece 4-2 whose axis is vertical to the horizontal screw 2 on the horizontal plane. The supporting leg 5 is radially connected to the connecting piece 4-2. The supporting leg 5 is provided with a telescopic device 5-1. 5 is provided with a transverse pedal 5-2 at the bottom, and two pipe levels 7 parallel and orthogonal to the axis of the transverse screw 2 are also fixed on the open annular base 1.

Claims (1)

1. An orthogonal ruler tripod, which has an open annular base (1). A rectangular open ruler seat (6) is rotatably connected to the inside of the open annular base (1) through a vertical axis (8). There is a spring (10) between the open annular base (1) and the rectangular open ruler seat (6). A transverse jackscrew (9) is provided on the open annular base (1). The transverse jackscrew (9) 9) The front end is in contact with the front end of the right side of the rectangular open ruler seat (6), which is characterized in that: the open annular base (1) is evenly distributed with the open annular base (1) on the opposite surface of the opening. ) Two transverse screws (2) that are rotated and connected and whose axes are orthogonal on the horizontal plane are provided with guide rails (3) whose axes are coplanar and parallel to the transverse screws (2). On the guide rails (3) ) is sleeved with a slide block (4) threadedly connected to the transverse screw (2). The slide block (4) is provided with a sliding locking device (4-1). The slide block (4) is provided with an axis and a transverse screw (4). 2) The connecting piece (4-2) is vertical on the horizontal plane. The legs (5) are radially connected to the connecting piece (4-2). A telescopic device (5-1) is provided on the legs (5). A transverse pedal (5-2) is provided at the bottom of the foot (5), and two pipe levels (7) parallel and orthogonal to the axis of the transverse screw (2) are also fixed on the open annular base (1).